6533b835fe1ef96bd129eaa5
RESEARCH PRODUCT
Pulsed X‐Ray Radiation Responses of Solarization‐Resistant Optical Fibers
Claude MarcandellaMarco CannasVincenzo De MicheleDiego Di FrancescaYoucef OuerdaneAntonino AlessiSylvain GirardAziz BoukenterPhilippe Pailletsubject
Optical fiberMaterials science02 engineering and technologyComputer Science::Human-Computer InteractionRadiation01 natural scienceslaw.invention[SPI]Engineering Sciences [physics]law0103 physical sciencesMaterials ChemistryElectrical and Electronic Engineering[PHYS]Physics [physics]010308 nuclear & particles physicsbusiness.industryX-raySurfaces and Interfaces021001 nanoscience & nanotechnologyCondensed Matter PhysicsSolarisationCrystallographic defectSurfaces Coatings and FilmsElectronic Optical and Magnetic Materialsoptical fiber silica point defects radiation induced absorption X-ray[SPI.OPTI]Engineering Sciences [physics]/Optics / PhotonicOptoelectronics0210 nano-technologybusinessdescription
International audience; The transient radiation‐induced attenuation (RIA) of two different versions of pure‐silica‐core (PSC) multimode optical fibers (so‐called “solarization‐resistant” fibers) exposed to nanosecond 1 MeV X‐ray pulses are investigated. On‐line RIA spectra measurements at both room temperature (RT) and liquid nitrogen temperatures (LNT) in the range 1–3.5 eV are performed. Following the RIA kinetics, the properties of the metastable defects that are bleached just after the pulse are discussed. The spectral decomposition of the RIA is performed using known Gaussian bands associated to point defects absorbing in this spectral range. For both fiber types, the generation and the post‐irradiation kinetics of the self‐trapped holes (STHs) that are the main contributor to the transient RIA are investigated particularly. Moreover, thanks to the measurements performed at low temperatures the complex temperature dependence of the kinetics of self‐trapped holes and some chlorine‐related species is characterized.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2018-12-11 |